Ammonia poisoning

ADAM Health 4 minute read November 4, 2019
Adam Health

Ammonia is a strong, colorless gas. If the gas is dissolved in water, it is called liquid ammonia. Poisoning may occur if you breathe in ammonia. Poisoning may also occur if you swallow or touch products that contain very large amounts of ammonia.

WARNING: Never mix ammonia with bleach. This causes the release of toxic chlorine gas, which can be deadly.

This article is for information only. DO NOT use it to treat or manage an actual poison exposure. If you or someone you are with has an exposure, call your local emergency number (such as 911), or your local poison center, the contact information for which can be found here.

Poisonous Ingredient

The poisonous ingredient is:

  • Ammonia

Where Found

Ammonia can be found in:

  • Ammonia gas
  • Some household cleaners
  • Some liniments
  • Some fertilizers

Note: This list may not be all-inclusive.


Symptoms can affect many parts of the body.


  • Cough
  • Chest pain (severe)
  • Chest tightness
  • Difficulty breathing
  • Rapid breathing
  • Wheezing


  • Fever


  • Tearing and burning of eyes
  • Temporary blindness
  • Throat pain (severe)
  • Mouth pain
  • Lip swelling



  • Confusion
  • Difficulty walking
  • Dizziness
  • Lack of coordination
  • Restlessness
  • Stupor (altered level of consciousness)



  • Severe stomach pain
  • Vomiting

Home Care

DO NOT make a person throw up unless told to do so by poison control or a health care professional. Seek immediate medical help.

If the chemical is on the skin or in the eyes, flush with lots of water for at least 15 minutes.

If the chemical was swallowed, immediately give the person water or milk, unless told otherwise by a health care provider. DO NOT give water or milk if the person is having symptoms (such as vomiting, convulsions, or a decreased level of alertness) that make it hard to swallow.

If the poison was inhaled, immediately move the person to fresh air.

Before Calling Emergency

Determine the following information:

  • Person’s age, weight, and condition
  • Name of product (as well as the ingredients and strength, if known)
  • Time it was swallowed
  • Amount swallowed

Poison Control

Your local poison center’s contact information can be found here.

What to Expect at the Emergency Room

The provider will measure and monitor the person’s vital signs, including temperature, pulse, breathing rate and blood pressure. Blood and urine tests will be done. The person may receive:

  • Airway and breathing support, including oxygen. In extreme cases, a tube may be passed through the mouth into the lungs to prevent aspiration. A breathing machine (ventilator) would then be needed.
  • Bronchoscopy, which involves inserting a camera into the throat, bronchial tubes and lungs to check for burns in those tissues.
  • Chest x-ray.
  • ECG (electrocardiogram, or heart tracing).
  • Endoscopy (a camera down the throat to see burns in the esophagus and stomach).
  • Fluids through a vein (by IV).
  • Medicines to treat symptoms.

Outlook (Prognosis)

Damage is related to the amount and strength (concentration) of the ammonia. Most household cleaners are relatively weak and cause little or mild damage. Industrial strength cleaners can cause severe burns and injury.

Survival past 48 hours most often indicates recovery will occur. Chemical burns that occurred in the eye frequently heal; however, permanent blindness may result.


Levine MD. Chemical injuries. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 57.

Meehan TJ. Approach to the poisoned patient. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 139.

Nelson LS, Hoffman RS. Inhaled toxins. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 153.

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